Ultrathin metal alloy nanosheets offer promising applications in electrocatalysis due to their superior performance. In this study, we present a rational synthesis of ternary alloy ultrathin PdAg/PtPdAg nanosheets possessing highly porous edges (PdAg/PtPdAg P-NSs). By adopting mild reduction conditions and eliminating the need for strong surface-binding stabilizers, we effectively suppressed 3D growth and stabilized the unstable edges, resulting in ultrathin nanosheets with highly porous features. Importantly, these PdAg/PtPdAg P-NSs demonstrate remarkable electrocatalytic performances for the ethanol oxidation reaction, outperforming both their ternary counterparts and commercial Pd/C catalysts. This innovative synthetic approach offers a pathway to the design of high-performance 2D electrocatalysts for a broad spectrum of applications.

中文翻译：

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边缘控制的超薄 PdAg/PdPtAg 三元纳米片用于高效乙醇氧化反应

超薄金属合金纳米片由于其优越的性能在电催化领域提供了有前景的应用。在这项研究中，我们提出了具有高度多孔边缘的三元合金超薄 PdAg/PtPdAg 纳米片（PdAg/PtPdAg P-NSs）的合理合成。通过采用温和的还原条件并消除对强表面结合稳定剂的需求，我们有效地抑制了3D生长并稳定了不稳定的边缘，从而产生了具有高度多孔特性的超薄纳米片。重要的是，这些 PdAg/PtPdAg P-NS 在乙醇氧化反应中表现出卓越的电催化性能，优于三元催化剂和商用 Pd/C 催化剂。这种创新的合成方法为设计适用于广泛应用的高性能二维电催化剂提供了途径。